Art of producing mastic.



' 1b all WillOflbit may concern: a

' UNITED STATES "PATENT OFFICE.

-- HERBERT PASCHKE, OF NEW-YORK, N. Y.

ART F Pnooucme. MASTI'ICL Specification of Letters Patent.

- Patented Oct. 9,1906.

Application filed Octaber 6.1904. Serial No. 227,505.

Be it known that I, HERBERT PASCHKE, a citizen of the United tates, and a resident of the city of New York, orough of Manhattan,

in the county of New York and State of New York, have invented a .new and Im roved' Art of Producin Mastic, of which t e fol- V afull, c ear, and exact description.

This invention relates to the bituminous mastlcs formed and capable of employment in a cold state and without the apphcation of heat ofany sort, so that the article may be produced as expeditiously as common mor- I tic, I em loy a ulverized or fine y-divided cold (an there ore set) soluble bituminousor.other e uivalent substance. The degree to which-t 's substance is pulverized or divided may be varied and depends much upon the nature of the work to he performed. It

ma be stated, for exam le, that for work suc as the productiono mastic for laying ordinar brick the bituminous or equivalent materia should be pulverized tOgIfllllS of a proximately one-sixteenth of an inch in diameter." I next take a solvent of the said bituminous or ,othler equivalent substance. In the case of a bituminous substance, such as asphalt, I refer to employ as. asolvent benzin or nap tha. This solvent is preferably utilized by first it with a relatively small uantity of the bituminous or equivalent su stance, forming a semiliqui'd or viscous solution, which is a plied to the pulverized bituminous materiaFforming the vase, so as to convert the whole into astifi plastic mass,'which assumes this form without the employment of heat of any sort and which may be employed as a substitute for mortar and cement informing walls, coverings, or for laying brick, tile, or stone in practically the same manner that ordinary mortar and cement are employed.

The pulverization f the bituminous or is important in my invention, since with the material pulverized, as explained, upon the application of the solvent the solvent atother material forming the base of thematic tacks the outer surface of each grain of the said material forming thebase and softens said outer surface, causing the grains to ad- I here strongly together without, however,- running the compound intola homogeneous oruniform mass, theinterior portions of the for the time unaffected, so that-themateria retains to some extent its solid proportions,

thus imparting to the mastic a stiffness which enables it to be utilized in the manner explained. The mastic should be utilized immediately after it is formed and before the action of the solvent has brought about uniform or complete dissolution of the bitumi nou's or equivalentmaterialc After the mas-f tic has been lald'on'brick, stone'g'tile," or

' grains of the bituminous material'remainin whatever desired the action ofjthe solvent goes on, and finall the grains of pulveri zed material are whol y dissolved and run one into the other, so that a'uniform solid mass is produced. Evaporation ofthe solvent goes on and the mastic begins to take its permanent or set form, not in the shape of granulated or pulverized material, however, butin the shape of a concrete uniform mass, the

previously plastic condition of whichenables 1t to be worked andsetlexactly asdesiredfr In securing the resultbefore describ'e'd it will be understood that the'isolveutj is. inj'such quantity in proportion to the massof mate mad as to ultimately dissolve the entire mass,

as before described, and I findv in practice that good results are ordinarily secured b the use of about six or seven gallons of so vent to each one hundred pounds of the mass of granulated as haltic material, The ractice above explamed ofutiliz ingas' aso vent a viscous or semiliquid compoundcomposed partly of the solventand partly ofa quantity of the bituminous mater al constituting the base of the masticis alsoofm'ucli importance IOO in this invention In doing this a certain quantity ofthe'biturninous material is com: bined with theraw' solvent, so as to form the viscous or semifluid solution referred} to, and this solution is poured upon the pulverized anular mass formingthe base of the mastlc. The result is that the bituminous material first compounded with the solvent holds the solvent in a sort of suspension and retards its evaporation sufficiently to allo it to have the necessary action u on the pul verized bituminous material be ore the solvent evaporates. Were the raw solvent applied to the pulverized mastic the tendency would be for the solvent rapidly to evaporate and for this evaporation to become complete before the solution of the bituminous or other material is completed, thus defeating, partly at least, the urpose of the invention. In special cases, oweversuch, for instance, as t ose in which but small quantities of the mastic are produced at an operation and the Having thus described the preferred man- 7 ner of practicing my invention, I claim as new, and desire to secure by Letters Patent- 1. !The improvement in the art of producing a cold, Waterproof mastic, which consists, first, in pulverizing or granulating a cold soluble waterproof substance, and, sec- 0nd, in subjecting the said granulated waterproof substanceto the action of a solution composed of a soluble waterproof material and avolatile solvent of the same, whereby the evaporation of the solvent is delayed sufficientl to enable it to attack the outer surfaces 0 the saidgrains of waterproof material, softening said surfaces and causing said grains to adhere together and form a stiff plastic mass.

2. The'improvement in theart of producingla cold, waterproof mastic, which consists, first, in pulverizing or granulating a cold bituminous material, and, second, in subjecting said granulated bituminous material to .the action of a solution composed of a bituminous material and a volatile solvent of the same, whereby'the evaporation of the solvent is delayed sufficiently to enable it to attack .the outer surfaces of the said grains of bituminous material, softenin said surfaces and causing said grains to ad ere and form avstifi 'last c mass. I

I ,3. e improvement in the art of producing a waterproof structure, which consists, first,in pulverizing or granulating a coldsoluble waterproof material, second, in causing a solvent sufficient in quantity to ultimately dissolve the entire mass to attack the outer surfaces of the rains of said cold ranulated material and so tening the same wfiereby the grains adhere to each other and form a stiff plastic mass without the utilization of heat, and,third, in laying said stiff plastic mass in the desired form or position before the action 1 of the said solvent extends to and dissolves the interior parts of said grains of cold granulated material,

4. The improvement in the art of producing a waterproof structure, which consists, first,' in pulverizing or granulating a cold bituminous material, second, in causing a sol- .vent sufficient in quantity to ultimately dissolve the entire mass to attack the outer surfaces of said grains of cold bituminous ma- 'terial and softening the same, whereby the grains adhere to each other and form a stiff plastic mass without the utilization of heat,

and third, in laying said stiff plastic mass in tthe desired form or position before the action of the solvent extends to and dissolves the interior parts of said grains of bituminous material.

The improvement'in the art of producing a waterproof structure, which consists,

first, in pulverizing or granulating a cold soluble waterproof material, second, in subjecting said granulated waterproof material to the action 0 a solution composed of a soluble waterproof material and a volatile solvent of the same, whereby the evaporation of the solvent is delayed sufficiently to enable it to attack the outer surfaces of the said grains of waterproof material, softenin causing said grains to ad ere and form a stiff plastic mass, and, third, in laying said plastic mass in the desired form or position before the action of the said solvent extends to and dissolves the interior parts of said grains of soluble waterproof material.

6. The improvement in the art of producing'a waterproof structure, which consists, first, in pulverizing'or granulating a -cold, bituminous substance, second, in subjecting said granulated and bituminous substance to the action of a solution composed of a bituminous material and a volatile solvent of the same whereby the evaporation of the sol vent is delayed suiiiciently to enable it to attack the outer surfaces of the saidgrains of bituminous material, softening said surfaces and causing said grains to adhere and form a stiff plastic mass, and, third, in laying said plastic mass in the desired form or position before the action of the said solvent extends to and dissolves the interior parts of the said grains of bituminous material.

, In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HERBERT rAsoHKa.

Witnesses: ISAAC B. OWENS, JNO. M. BITTER.

said surfaces and p ITO 

